HID: multitouch: add FocalTech FTxxxx support

This is a Win7 device which does not work correctly with the default
settings (not the previous default BT).
However, the quirk ALWAYS_TRUE makes it working like a charm.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index a348ba0..2f10e6e 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -240,6 +240,7 @@
 
 #define USB_VENDOR_ID_CYGNAL		0x10c4
 #define USB_DEVICE_ID_CYGNAL_RADIO_SI470X	0x818a
+#define USB_DEVICE_ID_FOCALTECH_FTXXXX_MULTITOUCH	0x81b9
 
 #define USB_VENDOR_ID_CYPRESS		0x04b4
 #define USB_DEVICE_ID_CYPRESS_MOUSE	0x0001